Line-wire guide for checkrow planters



J W. PARKER LINE WIRE GUIDE FOR CHECKROW PLANTERS Original Filed Juhe 29, 1921 in we r 1 kn: ma'fllpaz'laer.

Patented Mar. 2, 1926.

UNITED STATES JAMES w. rARKER, or CHICAGO, ILLINOIS.

LINE-WIRE GUIDE FOR CHEOKROW PLANTERS.

Original application filed June 29, 1921, Serial 'No. 481,391. Divided and this application filed January 23, 1922. -Serial No. 531,256.

To all 0071 0122 it may concern:

Be it known that I, JAMES V. PARKER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Lineire Guides for Checkrow Planters, of which the following is a specification.

This invention relates to seed planting machines in which the seed-dropping mechanism is periodically operated so that the seed may be deposited at spaced points. The present application is a division of the application filed June 29, 1921, Serial No. 181,391, and it has reference more particularly to a check-Wire guiding mechanism embodying certain novel and improved features of construction, and modes of operation, as will be pointed out in the detailed description appearing hereinafter.

In order that the invention may be better understood, reference is had to the accompanying drawing forming a part of this specification, wherein Figure 1 is a plan view of the mechanism, and

Fig. 2 is an elevation thereof.

Referring specifically to the drawing, 36 denotes the front cross bar of the machine, the same carrying at its extremity a bracket plate 78 having an upstanding bearing 79 for one end of the shaft 58 which is to be periodically operated to effect the drop of the seed from the seed can or hopper 47 at spaced points. The bracket plate 7 8 is also provided with bearing ears 80 for the hinge pin 81 of a rocker plate 82, and a standard 83. The end of the shaft 58 is fitted with a crank 84- carrying an inverted yoke-shaped lever 85, the latter being pivoted at 86. The upper part of the lever 85 is connected by a rod 87 to the standard 88. The standard 88 carries a horizontal pin 88 on which is pivoted a latch hook 89, the latter being held in a position to support the rocker plate 82 by a contracting spring 90. The contracting spring 90 is anchored to a hook 91 on the bracket. The shank of the hook 89 has a boss 92 to receive and hold the end of a bow 46 which is fastened at one end in the boss 92 by a set screw 93, and at the opposite end in the corresponding boss on the other side of the machine.

Thepin 88 also carries a guide roller 9% for the check wire, and a similar roller 95 is carried by the rocker plate 82. The roller is carried by the rocker plate 82 at one side of the axis of the latter in the pivot 81 while at the opposite side of its axis the plate 82'is provided with a projecting wing 82. Theroller is heavier than the wing so that when the latch 89 is retracted as shown in dotted lines in Figure 2 the plate will drop carrying the roller 95 from vertical to horizontal position.

More specifically, the how 46 is operated by a wire connected thereto and extended to a point adjacent the operator of the machine so that when it is desired to release the member 82 so that the cone-shaped member or guide 95 will drop to a horizontal position, it is merely necessary to jerk the wire connected to the bow 4L6 whereupon the latch 89 will be moved to the dotted line position illustrated in Figure 2 to allow the member 82 to drop.

Referring to Figure 2, the check wire may be assumed as extending alongside the parts as shown. The wire is now raised to seat between the branches of the yoke lever 85 and it is carried back of the roller 95 and beneath the roller 94, so that the two rollers now form guiding retainers for the wire to hold the same up in the yoke 85 and to pick up the wire if it sags, as the machine proceeds on its course across the field. when the yoke 85 strikes a knot on the check wire, it will receive a rearward jolt, whereby the crank 84 is given a short rearward swing. This action couples a clutch 96 so as to set the shaft 58 in motion. A chain 97, driven by the axle of the machine, is trained over a sprocket wheel 98 on the shaft 58, the clutch 96 being constructed to couple said sprocket wheel to its shaft. When the sprocket wheel 98 is thus coupled to the shaft 58, said shaft starts to turn, whereupon the crank 84 also starts to swing and when it has made one revolution, the automatic uncoupling of the sprocket wheel 98 takes place, and the crank stops. As the connecting rod 87 is anchored to the stationary standard 88, the yoke 85, during the action just described, will rise and swing with the crank 84 so as to free itself of the check wire, and by the time the yoke descends on the completion of the rotary movement, the machine will have advanced so as to locate the mechanism along a smooth portion of the check wire, ready for another operation when the next button or knot is reached.

If the machine is halted for a return trip before the remote end of the check wire has been reached, all that the operator needs to do is to jerk back the bow 46 to release the wire, and the machine can then be driven back along the next adjoining row and check wire after hooking on the latter.

Ordinarily the bow 46 hereinbefore referred to is stationary, and it serves as a support for the forward end of the Wire or cable 46 Which extends rearwardly and is here attached to the marker rod (not shown), the forward end. of said wire or cable being fitted with an eye 46 which runs loosely on the bow. However, the how 46 in the present structure is carried by the boss 92 of the latch hook 89, and hence it affords a simple and convenient means for manually operating said hook, to allow the guide roller 95 to drop for releasing'the check-wire as hereinbefore described.

The construction of the check-wire guiding mechanism is the same 011 both sides of the machine, but the mechanism on one side only has been illustrated.

I claim.

In a planter, the combination with a bracket having a bearing, of a periodically operated shaft carried by the bearing and having a crank, a yoke shaped lever connected intermediate its ends to said crank and adapted to be engaged by the knots on a wire, a plate horizontally hinged to said bracket and having a guide roller for the wire, a standard carried by said bracket, a latch pivoted to said standard and having means to engage said plate, to normally hold the same in position, and a link connecting the upper portion of said lever with said standard.

In testimony whereof I allix my signature.

JAMES W. PARKER. 

